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Diffstat (limited to 'Build/source/texk/web2c/luatexdir/tex/conditional.h')
-rw-r--r-- | Build/source/texk/web2c/luatexdir/tex/conditional.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/luatexdir/tex/conditional.h b/Build/source/texk/web2c/luatexdir/tex/conditional.h new file mode 100644 index 00000000000..23c79a03d3a --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/tex/conditional.h @@ -0,0 +1,82 @@ +/* conditional.h + + Copyright 2009 Taco Hoekwater <taco@luatex.org> + + This file is part of LuaTeX. + + LuaTeX is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 2 of the License, or (at your + option) any later version. + + LuaTeX is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public + License for more details. + + You should have received a copy of the GNU General Public License along + with LuaTeX; if not, see <http://www.gnu.org/licenses/>. */ + +/* $Id: conditional.h 3261 2009-12-18 11:38:21Z taco $ */ + +#ifndef CONDITIONAL_H +# define CONDITIONAL_H + + +# define unless_code 32 /* amount added for `\.{\\unless}' prefix */ + +typedef enum { + if_char_code = 0, /* `\.{\\if}' */ + if_cat_code = 1, /* `\.{\\ifcat}' */ + if_int_code = 2, /* `\.{\\ifnum}' */ + if_dim_code = 3, /* `\.{\\ifdim}' */ + if_odd_code = 4, /* `\.{\\ifodd}' */ + if_vmode_code = 5, /* `\.{\\ifvmode}' */ + if_hmode_code = 6, /* `\.{\\ifhmode}' */ + if_mmode_code = 7, /* `\.{\\ifmmode}' */ + if_inner_code = 8, /* `\.{\\ifinner}' */ + if_void_code = 9, /* `\.{\\ifvoid}' */ + if_hbox_code = 10, /* `\.{\\ifhbox}' */ + if_vbox_code = 11, /* `\.{\\ifvbox}' */ + ifx_code = 12, /* `\.{\\ifx}' */ + if_eof_code = 13, /* `\.{\\ifeof}' */ + if_true_code = 14, /* `\.{\\iftrue}' */ + if_false_code = 15, /* `\.{\\iffalse}' */ + if_case_code = 16, /* `\.{\\ifcase}' */ + if_def_code = 17, /* `\.{\\ifdefined}' */ + if_cs_code = 18, /* `\.{\\ifcsname}' */ + if_font_char_code = 19, /* `\.{\\iffontchar}' */ + if_in_csname_code = 20, /* `\.{\\ifincsname}' */ + if_primitive_code = 21, /* `\.{\\ifprimitive}' */ + if_abs_num_code = 22, /* `\.{\\ifabsnum}' */ + if_abs_dim_code = 23, /* `\.{\\ifabsdim}' */ +} if_type_codes; + + + + +# define if_limit_subtype(A) subtype((A)+1) +# define if_limit_type(A) type((A)+1) +# define if_line_field(A) vlink((A)+1) + +typedef enum { + if_code = 1, /* code for \.{\\if...} being evaluated */ + fi_code = 2, /* code for \.{\\fi} */ + else_code = 3, /* code for \.{\\else} */ + or_code = 4, /* code for \.{\\or} */ +} else_type_codes; + +extern halfword cond_ptr; /* top of the condition stack */ +extern int if_limit; /* upper bound on |fi_or_else| codes */ +extern int cur_if; /* type of conditional being worked on */ +extern int if_line; /* line where that conditional began */ +extern int skip_line; /* skipping began here */ + +extern void pass_text(void); +extern void push_condition_stack(void); +extern void pop_condition_stack(void); +extern void change_if_limit(int l, halfword p); + +extern void conditional(void); + +#endif |